23:6 [not giving way to their desires] with any but their spouses - that is, those whom they rightfully possess [through wedlock]:* for then, behold, they are free of all blame,
Muhammad Asad (The Message Of Quran)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
[And finally We told him:] Now take in thy hand a small bunch of grass, and strike therewith, and thou wilt not break thine oath!"* for, verily, We found him full of patience in adversity: how excellent a servant [of Ours], who, behold, would always turn unto Us!